347
FZUS52 KKEY 140927
CWFKEY
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
427 AM EST WED JAN 14 2026
FLORIDA BAY, HAWK CHANNEL AND STRAITS OF FLORIDA FROM OCEAN REEF
TO SOUTH OF DRY TORTUGAS, AND THE EXTREME SOUTHEASTERN GULF OF
AMERICA, INCLUDING THE FLORIDA KEYS NATIONAL MARINE SANCTUARY
SEAS ARE GIVEN AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE AVERAGE
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
WAVE DETAIL WILL INCLUDE DETAILS ABOUT THE PERIOD AND DIRECTION
OF ORIGIN FOR THE HIGHEST ENERGY WAVES. LONG-PERIOD SWELLS COMING
FROM A DIFFERENT DIRECTION THAN THE WIND WOULD BE INCLUDED IN THE
WAVE DETAIL.
GMZ005-142130-
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS
427 AM EST WED JAN 14 2026
SYNOPSIS
A TROUGH CURRENTLY RESIDES ACROSS THE CENTRAL
PORTION OF THE KEYS LEADING TO VARIABLE BREEZES THIS MORNING.
THIS TROUGH WILL SWING ACROSS OUR AREA TODAY WITH BREEZES SLOWLY
FRESHENING AND BECOMING WEST TO NORTHWEST BY TONIGHT. THIS WILL BE
FOLLOWED BY A PRE- FRONTAL TROUGH AND A BEEFY COLD FRONT ON
THURSDAY. WINDS ARE EXPECTED TO SHIFT NORTHWEST, BECOMING STRONG
AND POTENTIALLY NEAR GALE BREEZES. HIGH PRESSURE MOVES IN QUICKLY
BEHIND THE FRONT LEADING TO RAPIDLY SLACKENING BREEZES ON FRIDAY.
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF JANUARY
12...
19 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY.
13 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS.
15 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST.
17 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY.
17 NM SOUTHEAST OF SOMBRERO KEY LIGHT...OFF MARATHON.
15 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA.
10 NM SOUTHEAST OF MOLASSES REEF LIGHT...OFF KEY LARGO.
5 NM SOUTHEAST OF CARYSFORT REEF LIGHT...OFF OCEAN REEF.
GULF STREAM INFORMATION COURTESY OF THE NATIONAL WEATHER SERVICE IN
KEY WEST BASED ON PRODUCTS FROM NASA SPORT AND RTOFS.
GMZ031-142130-
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND
BUTTONWOOD SOUND-
427 AM EST WED JAN 14 2026
..SMALL CRAFT ADVISORY LIKELY WILL BE REQUIRED THURSDAY
TODAY
SOUTHEAST TO SOUTH WINDS NEAR 5 KNOTS, BECOMING WEST 10
TO 15 KNOTS IN THE AFTERNOON. BAY WATERS SMOOTH, BECOMING A LIGHT
TO MODERATE CHOP. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.
TONIGHT
WEST TO NORTHWEST WINDS 10 TO 15 KNOTS, BECOMING WEST
NEAR 15 KNOTS. BAY WATERS A LIGHT TO MODERATE CHOP, BECOMING A
MODERATE CHOP. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.
THURSDAY
SOUTHWEST TO WEST WINDS 15 TO 20 KNOTS, BECOMING
NORTHWEST NEAR 25 KNOTS IN THE AFTERNOON. BAY WATERS CHOPPY,
BECOMING EXTREMELY ROUGH. NUMEROUS SHOWERS AND ISOLATED
THUNDERSTORMS.
THURSDAY NIGHT
NORTHWEST TO NORTH WINDS 20 TO 25 KNOTS,
BECOMING NORTH 15 TO 20 KNOTS AFTER MIDNIGHT. BAY WATERS VERY
ROUGH, BECOMING CHOPPY.
FRIDAY
NORTH TO NORTHEAST WINDS 15 TO 20 KNOTS, BECOMING
NORTHEAST NEAR 10 KNOTS IN THE AFTERNOON. BAY WATERS CHOPPY,
BECOMING A LIGHT CHOP.
FRIDAY NIGHT
NORTHEAST TO EAST WINDS NEAR 10 KNOTS. BAY WATERS
A LIGHT CHOP.
SATURDAY
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS
SMOOTH TO A LIGHT CHOP.
SATURDAY NIGHT
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS,
BECOMING NORTH NEAR 15 KNOTS. BAY WATERS SMOOTH TO A LIGHT CHOP,
BECOMING A MODERATE CHOP. ISOLATED SHOWERS.
SUNDAY AND SUNDAY NIGHT
NORTHWEST TO NORTH WINDS 15 TO 20
KNOTS. BAY WATERS CHOPPY.
GMZ032-035-142130-
BAYSIDE AND GULFSIDE FROM CRAIG KEY TO WEST END OF SEVEN MILE
BRIDGE-
GULF OF AMERICA FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON
SHOAL OUT TO 5 FATHOMS-
427 AM EST WED JAN 14 2026
..SMALL CRAFT ADVISORY LIKELY WILL BE REQUIRED THURSDAY
TODAY
VARIABLE WINDS NEAR 5 KNOTS, BECOMING WEST TO NORTHWEST
10 TO 15 KNOTS IN THE AFTERNOON. SEAS 1 FOOT OR LESS, EXCEPT
BUILDING TO 1 TO 2 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE
WATERS SMOOTH, BECOMING A LIGHT TO MODERATE CHOP. SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS.
TONIGHT
WEST TO NORTHWEST WINDS 10 TO 15 KNOTS, BECOMING WEST
15 TO 20 KNOTS. SEAS 1 TO 2 FEET, EXCEPT BUILDING TO 2 TO 3 FEET
WEST OF THE MARQUESAS KEYS. NEARSHORE WATERS A LIGHT TO MODERATE
CHOP, BECOMING CHOPPY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS.
THURSDAY
WEST WINDS NEAR 20 KNOTS, BECOMING NORTHWEST NEAR 25
KNOTS. SEAS 2 TO 4 FEET, OCCASIONALLY TO 5 FEET, BUILDING TO 4 TO
6 FEET, OCCASIONALLY TO 8 FEET. WEST OF THE MARQUESAS KEYS, SEAS 4
TO 5 FEET, OCCASIONALLY TO 6 FEET, BUILDING TO 6 TO 8 FEET,
OCCASIONALLY TO 10 FEET. NEARSHORE WATERS ROUGH, BECOMING
EXTREMELY ROUGH. NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS.
THURSDAY NIGHT
NORTHWEST TO NORTH WINDS NEAR 25 KNOTS, BECOMING
NORTH TO NORTHEAST NEAR 20 KNOTS. SEAS 4 TO 6 FEET, OCCASIONALLY
TO 8 FEET, EXCEPT 6 TO 9 FEET, OCCASIONALLY TO 11 FEET WEST OF THE
MARQUESAS KEYS. NEARSHORE WATERS EXTREMELY ROUGH, BECOMING ROUGH.
FRIDAY
NORTH TO NORTHEAST WINDS 15 TO 20 KNOTS, BECOMING
NORTHEAST NEAR 10 KNOTS IN THE AFTERNOON. SEAS 3 TO 5 FEET,
OCCASIONALLY TO 6 FEET, SUBSIDING TO 2 TO 3 FEET. WEST OF THE
MARQUESAS KEYS, SEAS 4 TO 6 FEET, OCCASIONALLY TO 8 FEET,
SUBSIDING TO 3 TO 5 FEET, OCCASIONALLY TO 7 FEET. NEARSHORE WATERS
CHOPPY, BECOMING A LIGHT CHOP.
FRIDAY NIGHT
NORTHEAST WINDS NEAR 10 KNOTS. SEAS 2 TO 3 FEET,
EXCEPT 3 TO 4 FEET, OCCASIONALLY TO 5 FEET WEST OF THE MARQUESAS
KEYS. NEARSHORE WATERS A LIGHT CHOP.
SATURDAY
NORTH TO NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO
2 FEET, EXCEPT 2 TO 3 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE
WATERS A LIGHT TO MODERATE CHOP.
SATURDAY NIGHT
NORTH WINDS 10 TO 15 KNOTS, INCREASING TO NEAR
15 KNOTS. SEAS 1 TO 2 FEET, EXCEPT AROUND 2 FEET WEST OF THE
MARQUESAS KEYS. NEARSHORE WATERS A LIGHT TO MODERATE CHOP,
BECOMING A MODERATE CHOP.
SUNDAY
NORTHWEST TO NORTH WINDS 15 TO 20 KNOTS, INCREASING TO
NEAR 20 KNOTS. SEAS 2 TO 3 FEET, EXCEPT BUILDING TO 3 TO 4 FEET,
OCCASIONALLY TO 5 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE
WATERS CHOPPY, BECOMING ROUGH.
SUNDAY NIGHT
NORTHWEST TO NORTH WINDS 20 TO 25 KNOTS. SEAS 3
TO 5 FEET, OCCASIONALLY TO 6 FEET, EXCEPT 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE
WATERS VERY ROUGH.
GMZ042>044-142130-
HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF-
HAWK CHANNEL FROM CRAIG KEY TO WEST END OF SEVEN MILE BRIDGE OUT
TO THE REEF-
HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL
OUT TO THE REEF-
427 AM EST WED JAN 14 2026
..SMALL CRAFT ADVISORY LIKELY WILL BE REQUIRED THURSDAY
TODAY
VARIABLE WINDS 5 TO 10 KNOTS, BECOMING WEST TO NORTHWEST
10 TO 15 KNOTS IN THE AFTERNOON. SEAS 1 TO 2 FEET. NEARSHORE
WATERS SMOOTH TO A LIGHT CHOP, BECOMING A LIGHT TO MODERATE CHOP
LATE. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.
TONIGHT
WEST TO NORTHWEST WINDS 10 TO 15 KNOTS, INCREASING TO
15 TO 20 KNOTS. SEAS 1 TO 2 FEET, EXCEPT BUILDING TO 2 TO 3 FEET
WEST OF COSGROVE SHOAL LIGHT. NEARSHORE WATERS A LIGHT TO MODERATE
CHOP, BECOMING CHOPPY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS.
THURSDAY
WEST WINDS NEAR 20 KNOTS, BECOMING NORTHWEST 25 TO 30
KNOTS IN THE AFTERNOON. SEAS 2 TO 3 FEET, BUILDING TO 2 TO 4
FEET, OCCASIONALLY TO 5 FEET. WEST OF COSGROVE SHOAL LIGHT, SEAS 4
TO 5 FEET, OCCASIONALLY TO 6 FEET, BUILDING TO 5 TO 8 FEET,
OCCASIONALLY TO 10 FEET. NEARSHORE WATERS ROUGH, BECOMING
EXTREMELY ROUGH. NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS.
THURSDAY NIGHT
NORTHWEST TO NORTH WINDS NEAR 25 KNOTS, BECOMING
NORTH TO NORTHEAST NEAR 20 KNOTS. SEAS 2 TO 4 FEET, OCCASIONALLY
TO 5 FEET, EXCEPT 6 TO 9 FEET, OCCASIONALLY TO 11 FEET WEST OF
COSGROVE SHOAL LIGHT. NEARSHORE WATERS EXTREMELY ROUGH, BECOMING
ROUGH.
FRIDAY
NORTH TO NORTHEAST WINDS NEAR 20 KNOTS, BECOMING
NORTHEAST NEAR 10 KNOTS IN THE AFTERNOON. SEAS 2 TO 4 FEET,
OCCASIONALLY TO 5 FEET, SUBSIDING TO 2 TO 3 FEET. WEST OF COSGROVE
SHOAL LIGHT, SEAS 4 TO 6 FEET, OCCASIONALLY TO 8 FEET, SUBSIDING
TO 3 TO 5 FEET, OCCASIONALLY TO 7 FEET. NEARSHORE WATERS ROUGH,
BECOMING A LIGHT CHOP.
FRIDAY NIGHT
NORTHEAST WINDS NEAR 10 KNOTS. SEAS AROUND 2
FEET, EXCEPT 3 TO 4 FEET, OCCASIONALLY TO 5 FEET WEST OF COSGROVE
SHOAL LIGHT. NEARSHORE WATERS A LIGHT CHOP.
SATURDAY
NORTH TO NORTHEAST WINDS 10 TO 15 KNOTS. SEAS AROUND
2 FEET, EXCEPT 2 TO 3 FEET WEST OF COSGROVE SHOAL LIGHT.
NEARSHORE WATERS A LIGHT TO MODERATE CHOP.
SATURDAY NIGHT
NORTH TO NORTHEAST WINDS 10 TO 15 KNOTS,
INCREASING TO NEAR 15 KNOTS. SEAS AROUND 2 FEET. NEARSHORE WATERS
A LIGHT TO MODERATE CHOP, BECOMING A MODERATE CHOP. ISOLATED
SHOWERS.
SUNDAY
NORTHWEST TO NORTH WINDS 15 TO 20 KNOTS, INCREASING TO
NEAR 20 KNOTS. SEAS AROUND 2 FEET. WEST OF COSGROVE SHOAL LIGHT,
SEAS 2 TO 3 FEET, BUILDING TO 3 TO 4 FEET, OCCASIONALLY TO 5 FEET.
NEARSHORE WATERS CHOPPY, BECOMING ROUGH.
SUNDAY NIGHT
NORTH WINDS 20 TO 25 KNOTS. SEAS 2 TO 3 FEET,
EXCEPT 3 TO 5 FEET, OCCASIONALLY TO 6 FEET WEST OF COSGROVE SHOAL
LIGHT. NEARSHORE WATERS VERY ROUGH.
GMZ052>055-072>075-142130-
STRAITS OF FLORIDA FROM OCEAN REEF TO CRAIG KEY OUT 20 NM-
STRAITS OF FLORIDA FROM CRAIG KEY TO WEST END OF SEVEN MILE
BRIDGE OUT 20 NM-
STRAITS OF FLORIDA FROM WEST END OF SEVEN MILE BRIDGE TO SOUTH OF
HALFMOON SHOAL OUT 20 NM-
STRAITS OF FLORIDA FROM HALFMOON SHOAL TO 20 NM WEST OF DRY
TORTUGAS OUT 20 NM-
STRAITS OF FLORIDA FROM OCEAN REEF TO CRAIG KEY 20 TO 60 NM OUT-
STRAITS OF FLORIDA FROM CRAIG KEY TO WEST END OF SEVEN MILE
BRIDGE 20 TO 60 NM OUT-
STRAITS OF FLORIDA FROM WEST END OF SEVEN MILE BRIDGE TO SOUTH OF
HALFMOON SHOAL 20 TO 60 NM OUT-
STRAITS OF FLORIDA FROM HALFMOON SHOAL TO 20 NM WEST OF DRY
TORTUGAS 20 TO 60 NM OUT-
427 AM EST WED JAN 14 2026
..SMALL CRAFT ADVISORY LIKELY WILL BE REQUIRED THURSDAY
TODAY
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS, BECOMING
SOUTHWEST TO WEST 10 TO 15 KNOTS IN THE AFTERNOON. SEAS 1 TO 2
FEET, BUILDING TO 2 TO 3 FEET. WAVE DETAIL: SOUTH 2 FEET AT 4
SECONDS AND NORTHWEST 1 FOOT AT 5 SECONDS. SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS.
TONIGHT
WEST TO NORTHWEST WINDS 10 TO 15 KNOTS, BECOMING WEST
15 TO 20 KNOTS. SEAS 2 TO 3 FEET, BUILDING TO 2 TO 4 FEET,
OCCASIONALLY TO 5 FEET. WAVE DETAIL: WEST TO NORTHWEST 2 FEET AT 3
SECONDS. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.
THURSDAY
WEST WINDS NEAR 20 KNOTS, BECOMING NORTHWEST 25 TO 30
KNOTS IN THE AFTERNOON. SEAS 3 TO 5 FEET, OCCASIONALLY TO 6 FEET,
BUILDING TO 5 TO 8 FEET, OCCASIONALLY TO 10 FEET. WAVE DETAIL:
WEST 5 FEET AT 5 SECONDS, BECOMING WEST TO NORTHWEST 8 FEET AT 7
SECONDS. NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS.
THURSDAY NIGHT
NORTHWEST TO NORTH WINDS 25 TO 30 KNOTS,
BECOMING NORTH 20 TO 25 KNOTS AFTER MIDNIGHT. SEAS 5 TO 8 FEET,
OCCASIONALLY TO 10 FEET. ISOLATED SHOWERS.
FRIDAY
NORTH TO NORTHEAST WINDS NEAR 20 KNOTS, BECOMING
NORTHEAST TO EAST 10 TO 15 KNOTS IN THE AFTERNOON. SEAS 5 TO 7
FEET, OCCASIONALLY TO 9 FEET, SUBSIDING TO 4 TO 5 FEET,
OCCASIONALLY TO 6 FEET.
FRIDAY NIGHT
NORTHEAST TO EAST WINDS NEAR 10 KNOTS. SEAS 3 TO
5 FEET, OCCASIONALLY TO 6 FEET. ISOLATED SHOWERS.
SATURDAY
NORTH TO NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4
FEET, OCCASIONALLY TO 5 FEET. ISOLATED SHOWERS.
SATURDAY NIGHT
NORTH TO NORTHEAST WINDS 10 TO 15 KNOTS,
BECOMING NORTH NEAR 15 KNOTS. SEAS 2 TO 3 FEET, BUILDING TO 2 TO
4 FEET, OCCASIONALLY TO 5 FEET. ISOLATED SHOWERS.
SUNDAY
NORTHWEST TO NORTH WINDS 15 TO 20 KNOTS, INCREASING TO
NEAR 20 KNOTS. SEAS 3 TO 5 FEET, OCCASIONALLY TO 6 FEET. ISOLATED
SHOWERS.
SUNDAY NIGHT
NORTH WINDS 20 TO 25 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET.
GMZ033-034-142130-
GULF OF AMERICA FROM EAST CAPE SABLE TO CHOKOLOSKEE 20 TO 60 NM
OUT AND BEYOND 5 FATHOMS-
GULF OF AMERICA INCLUDING DRY TORTUGAS AND REBECCA SHOAL CHANNEL-
427 AM EST WED JAN 14 2026
..SMALL CRAFT ADVISORY MAY BE REQUIRED TONIGHT
..SMALL CRAFT ADVISORY CONDITIONS EXPECTED THURSDAY
TODAY
NORTH WINDS NEAR 5 KNOTS, BECOMING NORTHWEST NEAR 10
KNOTS IN THE AFTERNOON. SEAS 1 TO 2 FEET. WAVE DETAIL: NORTHWEST
1 FOOT AT 4 SECONDS. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.
TONIGHT
WEST TO NORTHWEST WINDS 10 TO 15 KNOTS, BECOMING
WEST NEAR 20 KNOTS AFTER MIDNIGHT. SEAS 1 TO 2 FEET, BUILDING TO
2 TO 4 FEET, OCCASIONALLY TO 5 FEET. WAVE DETAIL: WEST TO
NORTHWEST 3 FEET AT 5 SECONDS. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS.
THURSDAY
WEST WINDS 20 TO 25 KNOTS, BECOMING NORTHWEST TO NORTH 25
TO 30 KNOTS IN THE AFTERNOON. SEAS 4 TO 6 FEET, OCCASIONALLY TO 8
FEET, BUILDING TO 7 TO 10 FEET, OCCASIONALLY TO 13 FEET. WAVE
DETAIL: WEST 6 FEET AT 6 SECONDS, BECOMING WEST TO NORTHWEST 9
FEET AT 7 SECONDS. NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS.
THURSDAY NIGHT
NORTHWEST TO NORTH WINDS NEAR 25 KNOTS, BECOMING
NORTH TO NORTHEAST NEAR 20 KNOTS. SEAS 6 TO 9 FEET, OCCASIONALLY
TO 11 FEET.
FRIDAY
NORTH TO NORTHEAST WINDS 15 TO 20 KNOTS, BECOMING
NORTHEAST NEAR 10 KNOTS IN THE AFTERNOON. SEAS 5 TO 7 FEET,
OCCASIONALLY TO 9 FEET, SUBSIDING TO 3 TO 5 FEET, OCCASIONALLY TO
6 FEET.
FRIDAY NIGHT
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS, INCREASING
TO 10 TO 15 KNOTS. SEAS 3 TO 4 FEET, OCCASIONALLY TO 5 FEET.
SATURDAY
NORTH TO NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO
3 FEET.
SATURDAY NIGHT
NORTH WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET.
SUNDAY
NORTHWEST TO NORTH WINDS NEAR 15 KNOTS, INCREASING
TO NEAR 20 KNOTS. SEAS AROUND 2 FEET, BUILDING TO 3 TO 4 FEET,
OCCASIONALLY TO 5 FEET.
SUNDAY NIGHT
NORTH WINDS 20 TO 25 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET.
MJV
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